Ultra-sensitive nanofiber fluorescence detection in a microfluidic chip.

Ultra-sensitive nanofiber fluorescence detection in a microfluidic chip.
复制标题

DOI:
10.3390/s150304890
复制
发表时间:
2015-02-26
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Zhang L
Zhang L
中科院分区:
其他
文献类型:
--
作者:
Li Z;Xu Y;Fang W;Tong L;Zhang L

文献摘要

参考文献

被引文献

相似文献

我们报道了一种超灵敏和鲁棒的荧光传感器,该传感器采用腰直径为720 nm的双锥形锥制成,用于激发和荧光收集。为了提高荧光传感器的稳定性,双锥形锥被嵌入125µm宽的微通道中,检测长度为2.5 cm。通过测量罗丹明6G (R6G)的荧光强度,该传感器显示出低至100 pM的检测限,在0-10 nM浓度范围内具有优异的可逆性。该传感器还应用于量子点(QD)标记的链亲和素测量,对QD的检测灵敏度低至10 pM。此外,小样本体积(约500 nL),高采样吞吐量,以及双锥形锥度和标准光纤之间的无缝连接为化学和生物传感应用提供了许多有吸引力的优势。
We report an ultra-sensitive and robust fluorescence sensor made by using a biconical taper with a waist diameter of 720 nm for both excitation and fluorescence collection. To enhance the stability of the fluorescence sensor, the biconical taper has been embedded in a 125 µm wide microchannel with a detection length of 2.5 cm. Investigated by measuring the fluorescence intensity of rhodamine 6G (R6G), the sensor shows a detection limit down to 100 pM, with excellent reversibility in a concentration range of 0–10 nM. The sensor has also been applied to quantum dot (QD)-labeled streptavidin measurements, yielding a detection sensitivity down to 10 pM for QDs. In addition, the small sample volume (ca. 500 nL), high sampling throughput, and seamless connection between the biconical taper and standard optical fibers offer a number of attractive advantages for chemical and biosensing applications.
DOI: 10.1366/0003702981943851
发表时间: 1998-04-01
影响因子: 3.5
作者:
Mignani, AG;Falciai, R;Ciaccheri, L
通讯作者: Ciaccheri, L
DOI: 10.1364/ol.30.001273
发表时间: 2005-06-01
期刊: OPTICS LETTERS
影响因子: 3.6
作者:
Polynkin, P;Polynkin, A;Mansuripur, M
通讯作者: Mansuripur, M
DOI: 10.1016/j.snb.2010.09.018
发表时间: 2010-11-26
影响因子: 8.4
作者:
Monzon-Hernandez, David;Luna-Moreno, Donato;Villatoro, Joel
通讯作者: Villatoro, Joel
具有高折射率对比度的紧凑型微纤维布拉格光栅
DOI: 10.1364/ol.36.003115
发表时间: 2011-08-15
期刊: OPTICS LETTERS
影响因子: 3.6
作者:
Liu, Yanxin;Meng, Chao;Tong, Limin
通讯作者: Tong, Limin
DOI: 10.1364/oe.18.009474
发表时间: 2010-04-26
期刊: OPTICS EXPRESS
影响因子: 3.8
作者:
Warren-Smith, Stephen C.;Afshar, Shahraam, V;Monro, Tanya M.
通讯作者: Monro, Tanya M.